When comparing Dropbox vs TiddlyWiki, the Slant community recommends TiddlyWiki for most people. In the question“What is the best cross-platform note-taking app?” TiddlyWiki is ranked 8th while Dropbox is ranked 38th. The most important reason people chose TiddlyWiki is:
No commercial interests, no ads, no registration, no nonsense. You own your notes 100%.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Easy to use
You can use Dropbox via website, by installing a desktop client that creates a folder that you simply drag and drop files into, or with their mobile app. Everything synchronizes across all devices used and cloud storage. And Dropbox offers easy methods of sharing whatever is within it.
Pro Cross-platform desktop and mobile
Dropbox is available on iOS, Android, BlackBerry, Windows, OS X and Linux. By having a client for so many OS's pretty much anyone is covered no matter what kind of device or OS they are using.
Pro Allows sharing a folder
Using a desktop client: right click on the folder you want to share and select Dropbox > Share This Folder, then enter the e-mail addressees of people you want to share the folder with.
Pro Smart updates to big files
If a small portion of the file is changed it sends/receives only the differences (not the whole file), which is fast and bandwidth-efficient.
Pro Allows sharing a single file via link
Whether using desktop client or web interface, simply right click on the file you want to share and select Dropbox > Share link, then send the link to the people you want to share the file with. The recipient does not require a Dropbox account.
Pro Up to 18GB of free storage space
Dropbox personal accounts start out free, with 2GB of space, but users can get extra space by recommending the site to friends, or taking part in events like "Dropquest", where users can win extra space by solving puzzles.

Pro Linux support
Dropbox offers native Linux support, integrates with Nautilus file manager.
Pro Reliable
Pro Desktop client has no file size limit
As long as you have enough storage available, you can upload files of any size using Dropbox desktop client.
Pro Folders can be downloaded compressed to save bandwidth
To save bandwidth and download speed you can choose to compress a folder into a zip archive for download.
Pro Adjustable bandwidth use
To not slow down the network or save traffic you can limit the upload and download speeds of Dropbox.
Pro Lots of addons and integrations
There are official and third-party Dropbox add-ons that extend the functionality of the service and add ease of use of existing features.
Additionally, Dropbox can be integrated with existing applications to bring its functionality to other apps.
Pro 30-day version control
Dropbox keeps deleted and earlier versions of files for a month.
Pro Instant disaster recovery
Your files always synced online means instant disaster recovery. When your hard drive becomes unbootable, pick up another laptop and just carry on with your life from where you last saved.
Pro Available free storage can be increased with referrals
You get extra free space for you and your friend if they sign up.
Pro Fast sync speed
Pro Free and Open Source
No commercial interests, no ads, no registration, no nonsense. You own your notes 100%.
Pro Extremely customizable
This is a major aim and point with TiddlyWiki; people can relatively easily modify it to fit their particular application needs.
Pro Single html file
It's a single file and all your notes will be "accessible even in 25 years" because they can be seen in plain html text.
Pro Self-hosted and indefinitely accessible
All content is stored within the same html file as the interface.
Pro 10+ years mature
Mature software, active community with members from all over the world.
Pro Relational links
Allows for relational links and lists between notes to keep things organized.
Pro Lots of plugins
Pro Progressive user level, from ease of use to programming your own plugins
Basic users can start with simple note-taking, progressively discover predefined features and existing plugins, then start using more fancy features (like filters, widgets, macros), in order to adapt their wiki to their needs.
Pro Multiple, user-defined usages
The list of possible usages is practically infinite in TW, and more importantly it lets the user define their own method of dealing with their content.
Pro Easy to use
Low barrier of entry for the non IT knowledgeable.
Pro Backlinking and backtagging and brain graph visualization
Follow the link back-and-forth.
Pro Lightweight and very customizable
Variety of settings, and community themes & plugins, available from built-in marketplace (CPL library). Every community plugin is open-source which means you can learn from it and develop your own. Some plugin don't require programming knowledge (written using WikiText), and is very easy to learn.
Pro Support many text format (Markdown, WikiText, HTML, WYSIWYG...)
Suit for programmer, writer, Notion style WYSIWYG editor lover, and HTML UI designer.
Pro Locally stored, not dependent on cloud
Everything is stored in your device. You can back them up, encrypt and process however you want to. Works completely offline. Read your notes anytime, anywhere, in any platform, and sync between without cost.
Pro Backlink and BackTagging, advanced linking and cross-references in various ways
Every card can link to other card, and other card will see the way it's linked to. Use Tag for nesting and build folder structure. Tags are tree shaped, and count of tag is limitless. Backlink can be automatically generated or selectively generated using advanced filter.
Pro Update all links when renaming notes (required the Relink plugin)
Renames titles in "Tags" and "List" fields by default. Relink plugin updates titles in all links automatically.
Pro Host your TiddlyWiki file on GitHub for free
You can use the TiddlyWiki saver to save your TiddlyWiki file directly to your github repository. If you also use GitHub pages, then you can load your file wherever you happen to be, make changes, and update.
Pro Active and helpful community typically answers questions within hours
The official support forum is at talk.tiddlywiki.org. It's frequented by a large number of knowledgeable TiddlyWiki enthusiasts. You rarely see a question go unanswered more than 2 or 3 days, and in most cases questions are answered within minutes. For harder questions, the developer himself frequently wades in to add information.
Pro The equivalent of DataView/SQL already baked into the product
You can create lists of anything inside TiddlyWiki like tags, title structure, date, custom fields and present it as links, checkboxes, tables or whatever structure you need using a few lines of wikitext (a markdown-like language with powerful widget ability built-in).
Pro Official CodeMirror Plugins for a complete editing experience
The official CodeMirror plugins allow you to close brackets, close tags, auto-complete, use VIM, Sublime or Emacs keybindings, and edit CSS, HTML, XML or Javascript text.
Pro Tags are first-class objects in TiddlyWiki
In TiddlyWiki tags aren't some kludgey text-based add-on -- they're built into the design from the first. Tags can contain spaces and non-Latin characters. Tags are available at the top of each note. Click on a tag and you instantly see all the other notes that share that tag. You can then change the order of that list simply by dragging and dropping from the tag-pill. Tags can tag other tags, allowing you to create multiple types of TOC's with the built-in tag macros. You can create new notes tagged with the current note with just one click.
Pro Encrypt your entire Wiki with SJCL without additional plugins
You don't have to worry about leaving your TW somewhere it might get exposed. You can activate the built-in encryption ability, using the Stanford Javascript Encryption Library to have your wiki encrypted with 256 bit security.
Pro Can embed images and documents for a portable, single-file solution.
TiddlyWiki gives you the choice of whether you access additional resources (images, docx, pdfs) externally from the operating system or internally as embedded objects.
Cons
Con Too little free space
There is just too little of free space available comparing to the competition.

Con Not secure
They don't apply end-to-end encryption, files are visible to admins, governments, etc..
Con No privacy
Extensive collecting and distribution of user data to commercial third parties.
Con Consumes a lot of CPU resources when syncing many files
Con All-or-nothing (non-selective) upload
Uploading generated contents (cache, compiled code, etc.) is prone to conflicts, wastes bandwidth and free space.
Con Low bandwidth
Con Dropbox keeps deleting features, chasing customers away
For instance, all photo albums got deleted. It used to be very easy to share a couple og photos, now it's PAINFUL and must be done file by file.
Con Nocive development model
Takes a lot of decisions that usually damage community, from deleting features to making impossible to use with other filesystems than ext4 because they decided without a plausible reason (they said it was about xattrs, but all modern linux filesystems supports xattrs, so it's bs.)(they remove this later, but it's too late).
Con Problems when synching between Linux and Windows devices (unconfirmed)
This summer I lost thousands of files due to this problem on older projects which subsequently needed revising and had to be rebuilt as tons of the source was gone.
Con Restricted only to 3 devices for FREE accounts
Recently dropbox decreased the number of linked devices to 3, so you can't have more than 3 linked devices. This is problematic if you use Dropbox to sync between your computers.
Con Can unintentionally delete your files if you reinstall your OS without closing Dropbox
If you reinstall the operation system for your PC and you do not close Dropbox, it will delete all files.
Con Too many backlinks can cause performance issues
With 100k+ notes, backlink and brain graph visualization can slow down the wiki.
Con Relies on browser performance, online or offline
TiddlyWiki is a single HTML file. Thus, if you directly embed e. g large images or videos in it (instead of using the features to display externally stored images and videos) it would make the file big and performance slow.
Con Without JavaScript nothing is visible
You need a browser that is not outdated to open the wiki, if you want to edit the HTML wiki file inside browser. Or you will need to download app like TiddlywikiDesktop or TidGi App to edit the wiki.
Con Unintuitive, complex official user interface
Too powerful for some new users, requires stribg ability to learn many interactions and advanced features sets. But this can be change at anytime by install community theme and plugins. Or use edition like TidGi app to get Notion style experience.
